Question

find the value of minus 7 + 121 - 31 - 25 + 78

Answer 1

add all minus sign numbers and then plus sign numbers .
then solve:-$- 7 + 121 - 31 - 25 + 78 = 199 - 63 = 136$

Answer 2

the answer is 136 for -7+121-31-25+78